Loom-shuttle.



free end toward4 its shank, the inner-face ofthe WILL-1in r DnAPEn, or 'HoPEpALn nass'iioitisirfrs.

,No.feoaew.

v Specification of Letters Patent. -Applicaton led May 16, 1908. Serial No. 433,174.

Patented Jan'. '1j- 2, 1909. I'

To all `whom 'ttf/nay concern.'vv

I 3e' it known that I, WILLIAM F. DRAPER, a citizen of the United States, and `residentfo Hopedale, county of-'VVorcesten State lof Massachusetts have invented certainv new and useful Improvements in Loom-Shuttles, of which the following is a full, clear, and'exact specification.

j --My invention relates to loom shuttles designed for the automatic iii'sertionof'a bob'-4 therein'during the continuance in operation of the loom, and it has for its more particular object the production of improved means for en aging 'and holding in proper potion the bo bin when inserted in the shutfI eflect'the desired object by making separate jaws from resilient or spring lplate metal,

, the si: inks of the .jaws .being 'juxtaposed fand lseci; ...swyheldinfthe woodof t l e-shuttle-body by rappropriate 'nieans, [and in order to lighten the jaws-and at the same time improvetheir. resiliency I make them `of skele- .ton frm. That is to say, each jaw has an elongated centralopening-extended from its jaw being provided with u right or -transl the annular common construction, and a narrow verse notches above and be ow the opening, to engage and hold the annular projections or rings on the bobbin-head. The jawsgrasp projections .above .and below a horizontal ane through the :longitudinal `axis of the obbin, and thus hold it securely in position, .the skeleton form of the-jaws permitting them to yield more readily for the insertion and `ejection of a bobbin.

Figure 1 is a top plan view of the bobbinholding end of a loom shuttle rovided with my improved holding means; ig. 2 is a longitudinal section on the line 2--2, F1 1; Fig. 3 is a perspective view of one o the jaws; Fig. 4 is a similar view of the means for retaining the jaw Shanks 'in place in the shuttie-body. o

In Figs. 1 and 2 the numeral 1 1s the shuttlc-body,- havin an o ening 2 for the reception of the bob in, the head 3 whereor1 has annular projections or rings 4, Fig. 1, of

dinal recess 5 is made in the shuttle-body communicating with the bobbin-receiving opening 2, the recess being laterally undercut at 6, see dotted Alines Fig. 1, the recess being open at its top. j

The bobb' -holding jaws are made sepaje'ctions on the bo ngitu- Y the space rate and counterparts of each other, te bereversible,and they-may be. struck up or died j out 'from resilient shown se arately in ig. i3, it comprising an .elon ate portion or jaw pro er 7, bent inwar at its inner end'at 8 an again bentto form a shank 9 which is substantially parallel to the jaw portion 7, but ,set in from the plane thereof, and apertured at 10. The jaw has an elongated central opening 11 eX- tended longitudinally from its outer end to the bendA 8, and herein I have showny such o eningas 'continuing along the bend to the late-metal. A jaw 'is s ank and gradually decreasing in width, as

at 12. The inner Iface, .of the jaw is provided withA upright or transverse notches or grooves 13, se arated by the'opening 11 into two series o valinement witheach other and/adjavery 4clear y illustrated in Figs. 2 kand 3.

By makingthe 'jaal or' skeleton form its weight is `decreased while its spring or resiliency is increased and it will yield or flex more easily when a bobbin is being introduced vto or ejected from the shuttle, requiring less power for the performance of such operations'.

.Inasmuchra-sthe properholdng of theprobin-head depends upon :grasping ,the same .aboveand below a horizontal plane extended through its longitudii-n'al axis `.the opening .1 1 'inno way interferes with the proper action, for the series of notches 13 above and belowY such opening can grasp and hold securely the projections 4 at the proper points.

By gradually reducing the width of the opening toward the shank 9 the parts of the jaw gradually increase in stiiiness to the partl where rigidity is desired, viz: the shank, as will be apparent.

The connection or bar 14 at the free end of each jaw unites the notched parts above and below the opening. 11 and prevents accidental distortion or bending of such parts.

The jaw Shanks 9'are placed face to face with the holes 1() registering,- between the upturned sides 15 of a retaining member, made of plate metal and bent into the shape shown in Fig. 4, the bottom 16 vbeing bent up at one end at 17 and then forward at 18, the top 18 bein@r laterally widened to extend beyond the sides 15. rIhe Shanks 9 snugly fillthe bottom 16 and top 18 as shown ii Fig. 2

between said sides, and between lao and holes 19 in the sides are made to .register with the holes 10; At itsfront end the top 18 is narrowed and bent down at 2O to overla p 'a substantially crescent-shaped enlargement 21 of the bottom 16 of the .retaining member, the bends 8 of the jaws resting upon lFig. 1, securing the bolt in place, 'thereby vholding the retaining member and the j aws firmly in place in the shuttle.

The jaws' and the retaining member are easily and cheaply made and are readily assembled and inserted in the shuttle.

`Having fully described my invention, 'what I claim as new and desire to secure by Let-4 ters Patent is :-y

1. A loom shuttle provided with a bobbinreceiving opening and having holding-'aufs mounted in one end thereof, the free en( s of the jaws being open longitud'mally between their upper and lower edges and provided on their inner faces with opposite upright notches toengage annular projections ,on the head of a bobbin.

2. A loom shuttle provided witha bobbinreceivfng opening and having a recess in the shuttle-wood at one end thereof, separate holding-jaws having their Shanks 'extended into the recess, and means to engage and i hold the Shanks rigidly therein, thefreeends lof ,the jaws being open along their -central portions and having upright `notches 1n their A -inner faces above and vbelow thaopen portions. Ai 3. A loom shuttle provided with a bobbin- 45.

receiving openir-ig,- longitudinally-extended and opposite skeleton jaws mounted on the shuttle body and having alined series of upright notches on Itheir inner faces adjacent their upper and lower edges.

4. Bobbin-holding means for loom shuttles, comprising a pair of resilient, opposite jaws having their Shanks set in from the i .planes of their free ends, each jaw having 'an elongated central opening extended lon i'-` tudinally thereof from its outer end to t e shank, and upright notches in the inner face' of each jaw above and below the opening therein. j

5. A loom shuttle provided with a bobbinreceiving opening and having means. at one end of the opening to grasprandughold .the head of a bobloin` said meansicomprising separate skeleton spring-jaws having upright notches on their inner, opposite faces, and ineans to ixedly retain the jaws'in place.

6. Afloom shuttle provided witha bobbinreceiving opening and havin holding-jaws mounted in one end thereof, t e lfree yends of the jaws being open longitudinally between their upper and lower edges and provided on their inner faces with opposite upright notches to engage annular projections on the head of a bobbin',"the longitdinal opening of each jaw gradually decreasing in width toward its shank. l

In testimony .whereof-I have signed my name to this specification in the presence of two subscribingwitnesses Witnesses z SHELLEY H. VINCENT, 

